Is there a Way to Add to Vivaldi the Site Specific Preferences Add-on for Opera

One of the more useful Opera add-ons is the [url=https://addons.opera.com/en/extensions/details/site-specific-preferences/://]Site Specific Preferences Add-on[/url]. Since Opera and Vivaldi are chromium based, surely there is a way for Vivaldi to use this add-on? How? Does anybody know?